Recruitment strategy. The investigators have two major channels to recruit participants with the help of certified LHWs including hepatitis B initiative of Washington DC (HBI-DC) screening events and Asian American Health Center (AAHC). First, in the past 10 years, the HBI-DC has screened over 3000 individuals in the Baltimore-Washington Metropolitan Area and approximately 8 to 11% are positive for the surface antigen of the hepatitis B virus (HBsAg). Thus, many individuals are availing themselves of the free testing services. LHWs will announce upcoming screening events in their community by advertising in Korean churches or Chinese language schools or by word-of-mouth. Our research team and LHWs will attend these events to recruit potential participants. Based on previous experiences, each screening event attracted about 100 to 150 Asian Americans. Second, the investigators will go to AAHC volunteer clinics to recruit participants every Saturday. About 10 to 12 Chinese or Korean patients visit the clinic. Patients usually come with family members. So, the investigators estimate to recruit about 15 to 20 participants at the clinics every Saturday. Finally, the investigators will identify potential participants by advertising in ethnic media and ethnic groceries.